Towards the end of a raid on a dungeon, I directed Swampus towards the guard post, to attack a Glarrgl (lvl 13 or 14). Glarrgl retaliated, but also ejected an inkball, into it's 'own' Dark Library! It was consequently attacked by the remaining warlocks in the library, which eventually ko'd it (though it did manage to take out Swampus first). I didn't capture it, btw, it didn't seem fair! It went something like this: